Skip to main content
. Author manuscript; available in PMC: 2012 Apr 10.
Published in final edited form as: Am J Manag Care. 2010 Feb;16(2):131–138.

Table 5.

Correlations in Spending Trajectorya

Data % Change Correlations (P)
Medicare Hospital
and Physician
Reimbursements,
1996-2006
Thomson Reuters
Medical Spending
per Member Month,
Overall, 1996-2006
Non-Medicare
Inpatient Days
per Capita,
1996-2004
Medicare
Inpatient Days
per Capita,
1996-2004
HRR levela
 Medicare hospital and physician reimbursements,
 1996-2006
1
 Thomson Reuters medical spending per member
 month, overall, 1996-2006
0.20 (.001) 1
County levelb
 Non-Medicare inpatient days per capita, 1996-2004 1
 Medicare inpatient days per capita, 1996-2004 0.13 (<.001) 1

HRR indicates hospital referral region.

a

Medicare/Thomson correlations were weighted by member months in Thomson sample in 1996 and use the Thomson Reuters MarketScan Research Database for firms with data available for all years from 1996 to 2006; based on sample of 276 HRRs with at least 1500 member months of data in the Thomson Reuters data set in both 1996 and 2006. Data for Medicare are from the Dartmouth Atlas.

b

County-level Area Resource File correlations were weighted by total population of the county in 1996.

HHS Vulnerability Disclosure